Cisco 200-125 Online Practice Questions and Exam Preparation

Cisco 200-125 Online Questions & Answers

• Question 1241:

  Which three of these statements regarding 802.1Q trunking are correct? (Choose three.)

  A. 802.1Q native VLAN frames are untagged by default.
  B. 802.1Q trunking ports can also be secure ports.
  C. 802.1Q trunks can use 10 Mb/s Ethernet interfaces.
  D. 802.1Q trunks require full-duplex, point-to-point connectivity.
  E. 802.1Q trunks should have native VLANs that are the same at both ends.
  A. 802.1Q native VLAN frames are untagged by default.
  C. 802.1Q trunks can use 10 Mb/s Ethernet interfaces.
  E. 802.1Q trunks should have native VLANs that are the same at both ends.

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  By default, 802.1Q trunk defined Native VLAN in order to forward unmarked frame. Switches can forward Layer 2 frame from Native VLAN on unmarked trunks port. Receiver switches will transmit all unmarked packets to Native VLAN. Native VLAN is the default VLAN configuration of port. Note for the 802.1Q trunk ports between two devices, the same Native VLAN configuration is required on both sides of the link. If the Native VLAN in 802.1Q trunk ports on same trunk link is properly configured, it could lead to layer 2 loops. The 802.1Q trunk link transmits VLAN information through Ethernet.

• Question 1242:

  Which three statements accurately describe Layer 2 Ethernet switches? (Choose three.)

  A. Spanning Tree Protocol allows switches to automatically share VLAN information.
  B. Establishing VLANs increases the number of broadcast domains.
  C. Switches that are configured with VLANs make forwarding decisions based on both Layer 2 and Layer 3 address information.
  D. Microsegmentation decreases the number of collisions on the network.
  E. In a properly functioning network with redundant switched paths, each switched segment will contain one root bridge with all its ports in the forwarding state. All other switches in that broadcast domain will have only one root port.
  F. If a switch receives a frame for an unknown destination, it uses ARP to resolve the address.
  B. Establishing VLANs increases the number of broadcast domains.
  D. Microsegmentation decreases the number of collisions on the network.
  E. In a properly functioning network with redundant switched paths, each switched segment will contain one root bridge with all its ports in the forwarding state. All other switches in that broadcast domain will have only one root port.

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  Microsegmentation is a network design (functionality) where each workstation or device on a network gets its own dedicated segment (collision domain) to the switch. Each network device gets the full bandwidth of the segment and does not

  have to share the segment with other devices. Microsegmentation reduces and can even eliminate collisions because each segment is its own collision domain ->.

  Note: Microsegmentation decreases the number of collisions but it increases the number of collision domains.

• Question 1243:

  What are the three things that the Netflow uses to consider the traffic to be in a same flow? (Choose three)

  A. IP address
  B. Interface name
  C. Port numbers
  D. L3 protocol type
  E. MAC address
  A. IP address
  C. Port numbers
  D. L3 protocol type

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  What is an IP Flow?

  Each packet that is forwarded within a router or switch is examined for a set of IP packet attributes. These attributes are the IP packet identity or fingerprint of the packet and determine if the packet is unique or similar to other packets.

  Traditionally, an IP Flow is based on a set of 5 and up to 7 IP packet attributes.

  IP Packet attributes used by NetFlow:

  +

  IP source address

  +

  IP destination address

  +

  Source port

  +

  Destination port

  +

  Layer 3 protocol type

  +

  Class of Service

  +

  Router or switch interface

• Question 1244:

  What is the effect of configuring a server farm on a switch that operates in VLAN 20 using isolated ports?

  A. Hosts in the server farm are unable to communicate with each other.
  B. The primary VLAN and hosts are able to communicate with hosts on other VLANs
  C. The primary VLAN and hosts are able to reach community ports.
  D. The primary VLAN and hosts are able to communicate with each other
  D. The primary VLAN and hosts are able to communicate with each other

• Question 1245:

  How to configure RIPv2? (Choose Two.)

  A. Enable RIP
  B. Connect RIP to WAN interface
  C. Enable no auto-summary
  D. Enable authentication
  A. Enable RIP
  C. Enable no auto-summary

• Question 1246:

  Refer to the exhibit.

  

  Given the output for this command, if the router ID has not been manually set, what router ID will OSPF use for this router?

  A. 10.1.1.2
  B. 10.154.154.1
  C. 172.16.5.1
  D. 192.168.5.3
  C. 172.16.5.1

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  The highest IP address of all loopback interfaces will be chosen -> Loopback 0 will be chosen as the router ID.

• Question 1247:

  Which three statements about the features of SNMPv2 and SNMPv3 are true? (Choose three.)

  A. SNMPv3 enhanced SNMPv2 security features.
  B. SNMPv3 added the Inform protocol message to SNMP.
  C. SNMPv2 added the Inform protocol message to SNMP.
  D. SNMPv3 added the GetBulk protocol messages to SNMP.
  E. SNMPv2 added the GetBulk protocol message to SNMP.
  F. SNMPv2 added the GetNext protocol message to SNMP.
  A. SNMPv3 enhanced SNMPv2 security features.
  C. SNMPv2 added the Inform protocol message to SNMP.
  E. SNMPv2 added the GetBulk protocol message to SNMP.

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  SNMPv1/v2 can neither authenticate the source of a management message nor provide encryption. Without authentication, it is possible for nonauthorized users to exercise SNMP network management functions. It is also possible for nonauthorized users to eavesdrop on management information as it passes from managed systems to the management system. Because of these deficiencies, many SNMPv1/v2 implementations are limited to simply a read-only capability, reducing their utility to that of a network monitor; no network control applications can be supported. To correct the security deficiencies of SNMPv1/v2, SNMPv3 was issued as a set of Proposed Standards in January 1998. -> A is correct. The two additional messages are added in SNMP2 (compared to SNMPv1)

  GetBulkRequest The GetBulkRequest message enables an SNMP manager to access large chunks of data. GetBulkRequest allows an agent to respond with as much information as will fit in the response PDU. Agents that cannot provide values for all variables in a list will send partial information. -> E is correct.

  InformRequest The InformRequest message allows NMS stations to share trap information. (Traps are issued by SNMP agents when a device change occurs.) InformRequest messages are generally used between NMS stations, not between NMS stations and agents. -> C is correct.

  Note: These two messages are carried over SNMPv3.

• Question 1248:

  Refer to the exhibit.

  

  Which feature is enabled by this configuration?

  A. static NAT translation
  B. a DHCP pool
  C. a dynamic NAT address pool
  D. PAT
  C. a dynamic NAT address pool

• Question 1249:

  Which condition indicates that service password-encryption is enabled?

  A. The local username password is encrypted in the configuration.
  B. The enable secret is encrypted in the configuration.
  C. The local username password is in clear text in the configuration.
  D. The enable secret is in clear text in the configuration.
  A. The local username password is encrypted in the configuration.

• Question 1250:

  Which IEEE mechanism is responsible for the authentication of devices when they attempt to connect to a local network?

  A. 802.3x
  B. 802.1x
  C. 802.2x
  D. 802.11
  B. 802.1x